Unit 1A Physics

Stan was running a on a trail in a wooded area next to his house. He generally runs at a pace of 3 m/s. While Stan was running he realized he was going to have to pass the person that was running in front of him. To do this, Stan had to run at a pace of 7 m/s for about 2 seconds. What was Stan's acceleration during this time?

• 2 m/s2

• 2 m/s

• 5 m/s2

• 5 m/s

Jonas and his family are moving to another part of the city. As Jonas, his brother, and his Dad were driving one of the trucks filled with furniture to their new home, Jonas noticed that the truck seemed to take longer to stop now that it was heavier with the furniture. Which Newton's Law explains why this happens?

• Newtons 1st law

• Newtons 2nd law

• Newtons 3rd law

• Newtons law doesn't explain why this happens

Tags

NGSS.MS-PS2-2

What statement best describes what happens when a pitcher throws a baseball with different amounts of force?

• The mass of the baseball never changes so the more force in the pitchers arm, the higher the acceleration of the baseball before it leaves the pitcher's hand.

• The mass of the baseball never changes and therefore neither does the acceleration of the baseball.

• The mass of the baseball never changes so the more force in the pitchers arm, the lower the acceleration of the baseball before it leaves the pitcher's hand.

• Baseballs do not accelerate as they go through the air.

  
  

Tags

NGSS.MS-PS2-2

A roller coaster containing four cars is accelerating at 15 m/s2 before it comes to an abrupt stop at the end of the ride. The mass of one car is 200 kg. How much force was exerted on the roller coaster to bring it to a stop?

• 60N

• 800N

• 300N

• 12000N

Tags

NGSS.MS-PS2-2

What distance will a bus travel if it travels 50 km/hr for 3.8 hours?

• 53.80 Km

• 190.0 Km

• 46.2 Km

• 13.20 Km

Two trains are traveling down a track. Train A has more mass than Train B. What will happen when the two trains attempt to stop with the same force at the Train Station?

• The train with the larger mass will require less time to stop than the train with the smaller mass.

• The train with the smaller mass will take longer to stop than the train with the larger mass.

• The train with the smaller mass will require less time to stop than the train with the larger mass.

• The train with the larger mass will have less inertia than the train with the smaller mass.

  
  

Tags

NGSS.MS-PS2-2

Determine whether which represents an unbalanced force.

Select all the correct answers.

• A bicycle rider is coming to a stop.

• A lamp falls to the floor after being bumped.

• A hot air balloon is suspended in the air.

• A football player getting tackled

Tags

NGSS.MS-PS2-2

The air friction acting on a baseball causes it to curve as it is pitched to the catcher. This is a result of Newton's _____ Law (the number)

Isaac Newton is known for his laws of motion. These laws have been most helpful to scientists

• studying types of trees

• building space rockets

• discovering new fossils

• inventing new medicines

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

A soccer ball that is kicked will stay in motion until an equal force is exerted on the ball and it stops rolling. Which of these forces, when exerted on the ball, could stop the ball from rolling?

• friction and inertia

• inertia and gravity

• gravity and friction

• magnetism and friction

Tags

NGSS.MS-PS2-2